Bike Comparison
    MSRP
    $685
    Where to Buy
    $1

    At

    Category
    Crosscountry
    3.2
    Aluminum
    Fork
    Suntour XCT
    Wheels
    Aluminum
    27.5″
    Brakes
    Hydraulic Disc
    Groupset
    Altus
    Drivetrain
    3 × 9
    Suspension
    Hardtail
    Front Travel
    100mm
    Brand Site

    gtbicycles.com

    Summary
    The GT Avalanche Sport 27.5 is a 27.5″ aluminum frame hardtail crosscountry bike with mid-range components.
    Similar Bikes
    Accessories
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    33 mph

    Avalanche Sport 27.5

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Frame

    6061 T6 Aluminum Frame, w/ Triple Triangle™, Replaceable Derailleur Hanger, Disc Brake Mounts, and Zerostack tapered 1 1/8-1 1/2Head Tube, 27.5/29 Design

    Fork

    SR Suntour XCT-DS, 100mm, hydraulic lockout, Coil

    Bottom Bracket

    Cartridge Sealed

    Headset

    Semi Integrated, Sealed Cartridge, Tapered

    Stem

    All Terra Alloy 1 1/8” Threadless, 4-Bolt W/ CNC Face Plate, 31.8, 8°

    Handlebar

    GT All Terra Alloy Riser, 25mm rise, 8° sweep, 6° rise, 720mm

    Saddle

    All Terra MTB

    Seatpost

    All Terra Micro Adjust, 6061 Alloy, 30.9 x 350mm

    Pedals

    GT Slim Line Flat Pedal

    Grips

    GT Statement logo grips

    Groupset
    Crank

    All Terra, 44/32/22

    Shifters

    Shimano Altus, 3x9

    Cassette

    Shimano Alivio, 11-34, 9-speed

    Chain

    KMC Z99, 9-speed

    Brakes

    Tektro disc, 160/160mm

    Brake Levers

    Tektro disc

    Wheels
    Rims

    WTB ST i19 double wall rim

    Spokes

    Stainless Steel, 14g

    Front Hub

    Formula QR front and rear

    Tires

    WTB Transition, 27.5/29 x 2.25"

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